Reinitialize Python configuration

I am developing a Python script for a Toolbox that required a few libraries which I installed manually into C:\Python26\ArcGIS10.0\ and it worked just fine. To make it easier for the end user to install those libraries, I tried to install pip for Python 2.6 to try to make the process less obscure, but then I got confused and things got ugly, I ended up deleting the wrong files and messing up my configuration. I fixed a few things but I don't trust that setup anymore.

My question is: is there a way to clean up the Python configuration without uninstalling/reinstalling everything?